虽然发展成完全性心脏传导阻滞的病人,其心电图常事先即有完全性右束支传导阻滞伴电轴左偏,但此种双分支阻滞病人发展成完全性心脏阻滞的发生率低于10％。本文报道在一组此种病人,观察其手术中发展成严重房室传导阻滞的危险性,以了解有无安置预防性暂时起搏器的必要。所有病人在手术过程中及恢复室内连续进行单导程心电图监护,此外,对所有进行全身麻醉的病人在诱导、插管及拔管过程中予 Although patients who develop complete heart block have a complete right-bundle branch block with a left-lateral deviation in their electrocardiogram, the incidence of complete heart block develops in patients with this bifurcation block Less than 10%. This article reports the risk of developing a severe AV block in a group of such patients to see if there is a need for placement of a preventative temporary pacemaker. All patients underwent single-lead ECG monitoring during surgery and in the recovery room. In addition, all patients undergoing general anesthesia during induction, intubation and extubation